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APPENDIX
●
Vector addressing
Vector addressing is indicated by vct in the instruction list. This addressing is used to branch to a
subroutine address stored in the vector table. In this addressing mode, vct information is contained in the
operation codes, and the corresponding table addresses are created as shown in Table B.2-1 "Vector table
addresses corresponding to vct".
Figure B.2-8 "Example of vector addressing" shows an example.
Figure B.2-8 Example of vector addressing
Table B.2-1 Vector table addresses corresponding to vct
#vct Vector table address (higher address:lower address of branch destination)
0FFC0
H
: FFC1
H
1FFC2
H
: FFC3
H
2FFC4
H
: FFC5
H
3FFC6
H
: FFC7
H
4FFC8
H
: FFC9
H
5FFCA
H
: FFCB
H
6FFCC
H
: FFCD
H
7FFCE
H
: FFCF
H
F F C AH
CALLV #5
F E D CH
PC
F E
H
D CH
F F C BH
(Conversion)